I used 2 approaches:
- King of level and history: it´s translating the tree into levels, and learning the king (nodo father) and all of his sons.
- Using a Matrix: you have to learn a Matrix first, after you link the position of the matrix with the one you want to link.
Typical Matrix you may know to use it:
- The table of a chess
- The periodic system of elements
If not, you can make one funny, it´s difficult to get, but it´s like major system, once you have it, you can use wardrobe or a lot of things to get the info you need.
My tree wasn´t too big , so I used the first approach with Loci, I made a list of level, and every level had a list of sons, every son was a history I sketchnoted.
It had 5 leves, those are, 5 hooks, with (2-4 histories), it means, 5 hooks for every level, 10-20 nested hooks, and 10-20 sketchnoted histories, it´s may sound difficult, but if you work with it, it´s 2 days working a bit, faster than try to remember everything by repetition.